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arm64/signal: Use system_supports_tpidr2() to check TPIDR2

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Since commit a9d6915859501("arm64/sme: Implement support
for TPIDR2"), We introduced system_supports_tpidr2() for
TPIDR2 handling. Let's use the specific check instead.

No functional changes.

Signed-off-by: Dongxu Sun <sundongxu3@huawei.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230317124915.1263-2-sundongxu3@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Dongxu Sun
2023-03-17 20:49:12 +08:00
committed by Will Deacon
parent 73e68984cf
commit e9d14f3f3f
1 changed files with 3 additions and 3 deletions
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6
arch/arm64/kernel/signal.c
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@@ -651,7 +651,7 @@ static int parse_user_sigframe(struct user_ctxs *user,
break;
case TPIDR2_MAGIC:
if (!system_supports_sme())
if (!system_supports_tpidr2())
goto invalid;
if (user->tpidr2)
@@ -802,7 +802,7 @@ static int restore_sigframe(struct pt_regs *regs,
err = restore_fpsimd_context(&user);
}
if (err == 0 && system_supports_sme() && user.tpidr2)
if (err == 0 && system_supports_tpidr2() && user.tpidr2)
err = restore_tpidr2_context(&user);
if (err == 0 && system_supports_sme() && user.za)
@@ -974,7 +974,7 @@ static int setup_sigframe(struct rt_sigframe_user_layout *user,
}
/* TPIDR2 if supported */
if (system_supports_sme() && err == 0) {
if (system_supports_tpidr2() && err == 0) {
struct tpidr2_context __user *tpidr2_ctx =
apply_user_offset(user, user->tpidr2_offset);
err |= preserve_tpidr2_context(tpidr2_ctx);